The American crews don't have a thing on the Sicilians, Calabrians or Neapolitans these days.
For some reason I'd still put the Americans over for instance the Puglians, at least when it comes to professionalism. Maybe even turnover, seeing the money making base of the Puglians is very much confined to Puglia itself whereas you can find Mafia, Ndrangheta and Camorra cells operating in plenty of European countries.
It's hard to find stats on the annual revenue of the American mob so it's a bit hard to compare. For that reason I don't know how they do compared to for instance the Rome-based groups either. The Casamonica group for instance is rumored to have a total annual turnover of about 90 million, but then again the check cash scam ran by a few Genovese associates alone netted about 9 million.
It is hard to tell how much anyone is making. You are right, compared to the Italians, the Americans don’t compare in today’s day. In the past they might have but the Italians made money that the Americans never really saw. The Americans were on the verge of it before they were flipped upside down by law enforcement.
